Fermilab E791

TL;DR

Fermilab E791 is a high-statistics charm particle experiment that collected over 20 billion events, enabling extensive analysis of charm decays and yielding over 200,000 reconstructed charm events for detailed study.

Contribution

This paper reports on the successful collection and initial analysis of an unprecedented large dataset of charm decays, demonstrating the experiment's capability for detailed charm physics research.

Findings

Over 200,000 reconstructed charm decays identified

Rich yield of charm decay modes observed

Preliminary results show promising physics potential

Abstract

Fermilab E791, a very high statistics charm particle experiment, recently completed its data taking at Fermilab's Tagged Photon Laboratory. Over 20 billion events were recorded through a loose transverse energy trigger and written to 8mm tape in the the 1991-92 fixed target run at Fermilab. This unprecedented data sample containing charm is being analysed on many-thousand MIP RISC computing farms set up at sites in the collaboration. A glimpse of the data taking and analysis effort is presented. We also show some preliminary results for common charm decay modes. Our present analysis indicates a very rich yield of over 200K reconstructed charm decays.